# Change Healthcare Medical Network API

**Canonical:** https://apis.io/apis/change-healthcare/change-healthcare-api/  
**Provider:** Change Healthcare — https://apis.io/providers/change-healthcare/  
**Base URL:** https://apigw.optum.com/medicalnetwork/  
**Documentation:** https://developers.changehealthcare.com/

Change Healthcare Medical Network API is published by [Change Healthcare](https://apis.io/providers/change-healthcare/) on the [APIs.io](https://apis.io/) network. Tagged areas include Healthcare, EDI, Eligibility, Claims, and Prior Authorization. The published artifact set on APIs.io includes API documentation, an API reference, a getting-started guide, and a changelog.

JSON-over-REST front end to the HIPAA X12 EDI transaction set — 270/271 eligibility, 276/277 claim status, 837P/837I claim submission and validation, 835/277 claims responses and reports, 278 prior authorization and referrals, claim attachments, and the payer list. OAuth 2.0 client credentials against apip/auth/v2/token, one-hour bearer tokens, versioning carried in the URL path.

## Machine-readable artifacts (9)

- **Documentation** — https://developer.optum.com/eligibilityandclaims/docs
- **APIReference** — https://developer.optum.com/eligibilityandclaims/reference/api-overview
- **GettingStarted** — https://developer.optum.com/eligibilityandclaims/docs/get-started-with-optum-api
- **SignUp** — https://developer.optum.com/eligibilityandclaims/docs/create-a-sandbox-account
- **ChangeLog** — https://developer.optum.com/eligibilityandclaims/docs/eligibility-release-notes
- **Postman** — https://www.postman.com/changehealthcare-cdp-dev/workspace/change-healthcare-medical-network-apis/overview
- **Lifecycle** — https://raw.githubusercontent.com/api-evangelist/change-healthcare/refs/heads/main/lifecycle/change-healthcare-lifecycle.yml
- **Conformance** — https://raw.githubusercontent.com/api-evangelist/change-healthcare/refs/heads/main/conformance/change-healthcare-conformance.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/change-healthcare/refs/heads/main/apis.yml

## Tags

Healthcare, EDI, Eligibility, Claims, Prior Authorization

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/change-healthcare/change-healthcare-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/change-healthcare/.